Integrated logging tool for borehole
US7334465B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2006 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | May 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring characteristics of earth formations surrounding a borehole, comprises a resistivity measurement device having a multiplicity of antennae spaced between each other in a longitudinal direction of the apparatus. A neutron measurement device of the apparatus comprises at least a neutron source and at least a neutron detector, each of the neutron detectors being at a distance from the neutron source in the longitudinal direction of the apparatus. The multiplicity of antennae are interleaved with the neutron measurement device in order to reduce a total length of the apparatus and in order to allow a determined area of the earth formation to be measured simultaneously using the neutron measurement device and the resistivity measurement device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.